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WO2005073770A1 - Dispositif optique - Google Patents

Dispositif optique Download PDF

Info

Publication number
WO2005073770A1
WO2005073770A1 PCT/GB2005/000093 GB2005000093W WO2005073770A1 WO 2005073770 A1 WO2005073770 A1 WO 2005073770A1 GB 2005000093 W GB2005000093 W GB 2005000093W WO 2005073770 A1 WO2005073770 A1 WO 2005073770A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
entry portion
optical device
fibres
fibre
Prior art date
Application number
PCT/GB2005/000093
Other languages
English (en)
Inventor
Joris Franckx
Sam Leeman
Original Assignee
Tyco Electronics Raychem Nv
Tyco Electronics Uk Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tyco Electronics Raychem Nv, Tyco Electronics Uk Ltd filed Critical Tyco Electronics Raychem Nv
Priority to US10/586,829 priority Critical patent/US20080226249A1/en
Priority to EP05701862A priority patent/EP1709470A1/fr
Publication of WO2005073770A1 publication Critical patent/WO2005073770A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices

Definitions

  • the present invention relates to an optical device for containing an optical component, and particularly an optical device for containing a butt ended optical component.
  • the present invention also relates to a method of sealably enclosing an optical component, and in particular a butt ended optical component.
  • a first aspect of the present invention provides an optical device comprising an enclosure having a wall member defining a cavity and a sealable fibre entry portion, an optical component located within the cavity, and at least two optical fibres connected to the optical component and extending, substantially adjacent one another, through the entry portion.
  • the optical component As the optical fibres extend through the entry portion substantially adjacent one another, the optical component is held inside the enclosure in a sealed environment, thereby protected from the effects of variations in environmental conditions such as humidity. As the optical component is held in position relative to the enclosure at only one side of the component, the component is effectively free to move within the enclosure in the event that environmental conditions such as variations in temperature, cause the expansion or contraction of the optical fibres and/or other packaging elements. Thus, expansion or contraction of the fibres and/or other packaging elements is possible without stress to the fibres, as would be experienced using prior art devices. By avoiding stress in the optical fibres, the loss in optical performance that is experienced using prior art devices, is avoided.
  • a but ended optical component is an optical component in which the optical fibre connections are located on one side of the component.
  • the optical component may comprise any passive component, such as, for example, a planar splitter, filter wavelength division multiplexer (FWDM), arrayed wavelength grating (AWG), isolator, filter and the like. It will be appreciated by the skilled person that these are merely examples of suitable passive components and that any other suitable passive component known to the skilled person may be located within the cavity. It will also be readily understood by the skilled person that the optical component may be any suitable active component available to the skilled person and may be used as an alternative or in addition to a passive component within the cavity of the optical device.
  • FWDM filter wavelength division multiplexer
  • AMG arrayed wavelength grating
  • the optical fibres provide incoming and outgoing fibres for the optical device.
  • the fibre entry portion is arranged to receive the fibres substantially side by side as they extend through the entry portion. This allows for a better seal of the enclosure around the optical fibres if the fibres are arranged side by side, rather than being arranged such, for example, they cross over one another. More preferably, the fibres are arranged substantially parallel to one another as they extend through the fibre entry portion.
  • the enclosure is preferably substantially flexible, although it may alternatively be substantially rigid or at least a portion of the enclosure may be flexible while another portion of the enclosure may be rigid.
  • the optical device further comprises temperature control means.
  • temperature control means By providing temperature control means, a reduction in the possibility of condensation within the device may be achieved, while in addition, excessively high and/or low temperatures may also be avoided.
  • the temperature control means is preferably provided in any suitable location such as within the wall member of the enclosure, or within the cavity of the enclosure.
  • the temperature control means may comprise a heat sink or heat pipe, and/or an active temperature controller such as a heater, for example an electrical heater and/or an active cooling element.
  • humidity control means such as a desiccant, may be provided to further reduce the possibility of condensation within the enclosure.
  • the enclosure may comprise an insulating layer.
  • an insulating layer is located on an interior surface of the wall member.
  • the enclosure comprises a laminar material. More preferably, the laminar material comprises a moisture resistant layer.
  • the moisture resistant layer provides a substantially moisture resistant enclosure for surrounding the optical component.
  • the moisture resistant layer comprises a layer of aluminium or any other suitable metal.
  • the optical component is arranged on a support, possibly with other optical components, and the optical fibres routed in accordance with a predetermined circuit configuration with the optical fibre ends fed through the entry portion for optical connection with other components.
  • This allows for prefabrication of the optical component and optical fibres, thereby allowing for automation of the circuit assembly, and quick and simple installation of the optical component and optical fibres within the enclosure to provide an optical device according to the present invention.
  • the optical device may contain a single optical component located within the cavity defined by the wall member or alternatively, more than one optical component may be located within the cavity, with at least two optical fibres connected to each optical component and extending, substantially adjacent one another, through the entry portion.
  • a further aspect of the present invention provides a method of sealingly enclosing an optical component, the method comprising the steps of: - providing an enclosure having a wall member defining a cavity and a sealable fibre entry portion; arranging an optical component connected to at least two optical fibres within the cavity such that the two optical fibres extend, substantially adjacent one another, through the entry portion; and sealing the fibre entry portion so as to sealably retain the optical component within the cavity.
  • This provides an optical device in which the optical component or components are held in a 'free floating' arrangement within the cavity such that, under variations in environmental conditions, such as extreme temperature variations where expansion/contraction of the fibres and/or other packaging elements may occur, stress through the optical fibres and consequential optical loss is avoided.
  • the method further comprises the step of providing a polymer strip adjacent the optical fibres at the entry portion prior to sealing the entry portion.
  • the polymer strip On sealing of the fibre entry portion, the polymer strip then seals around the optical fibres, thereby sealing any gaps between the fibres and the wall member and providing an improved seal at the fibre entry portion.
  • the fibre entry portion may be sealed using heat and/or pressure applied at the fibre entry portion until the desired seal is achieved.
  • FIG. 1 is a perspective view of a butt ended optical component
  • Figure 3 is a perspective view of an enclosure according to an embodiment of the present invention
  • Figure 4 is a cross sectional view of the embodiment of figure 3.
  • Figure 2 shows a butt ended optical component 30 with an incoming optical fibre 40 and an outgoing optical fibre 50, the incoming optical fibre 40 and the outgoing optical fibre 50 both arranged on the same side of the optical component 30, in a so-called butt ended arrangement.
  • Such an optical component is shown in figures 2 and 3 as part of an embodiment of an optical device according to the present invention.
  • Figures 3 and 4 show an optical device 10 according to the present invention comprising an enclosure 20 defining a sealable fibre entry portion in which an optical component 30 is contained.
  • the enclosure 20 is sealed around the incoming and outgoing optical fibres 40 and 50 of optical component 30 such that the optical component 30 is held in a 'free floating' arrangement within the enclosure 20.
  • the incoming and outgoing optical fibres 40 and 50 are held substantially adjacent one another at the entry portion 60 when the entry portion 60 is sealed, thereby holding the optical component within the enclosure 20 such that the optical component is anchored at one side only relative to the enclosure.
  • a sealing strip 70 is provided between the fibres 40, 50 and the wall member of the enclosure 20 at the fibre entry portion 60.
  • the optical component 30 is free to move within the enclosure 20 in the event of contraction and/or expansion of the optical fibres 40, 50 and/or other packaging elements, due to variations in environmental conditions such as temperature variations. Therefore, on expansion and/or contraction of the optical fibres 40, 50 and/or other packaging elements, the optical component 30 is free to move within the enclosure 20, thereby avoiding stress on the fibres 40, 50 as would occur if the optical component 30 was not free to move, but instead was rigidly held within the enclosure 20, as is the case in prior art optical devices. By preventing stress on the optical fibres, optical quality is maintained and optical losses avoided.
  • the enclosure may accommodate more than one optical component, and may define one or more sealable fibre entry portions, provided each optical component is held in a 'free-floating' arrangement relative to the enclosure, as described above.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

dispositif optique (10) comprenant une enceinte fermée (20) dont une paroi définit une cavité et une partie entrée obturable pour fibres, un composant optique (30) situé dans la cavité et au moins deux fibres optiques (40, 50) connectées audit élément optique et traversant, sensiblement l'une contre l'autre, la partie entrée. L'invention concerne également une trousse de pièces permettant de réaliser un tel dispositif ainsi qu'une méthode de mise sous enceinte fermée du composant optique.
PCT/GB2005/000093 2004-01-30 2005-01-11 Dispositif optique WO2005073770A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/586,829 US20080226249A1 (en) 2004-01-30 2005-01-11 Optical Device
EP05701862A EP1709470A1 (fr) 2004-01-30 2005-01-11 Dispositif optique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0401998.0A GB0401998D0 (en) 2004-01-30 2004-01-30 Optical device
GB0401998.0 2004-01-30

Publications (1)

Publication Number Publication Date
WO2005073770A1 true WO2005073770A1 (fr) 2005-08-11

Family

ID=31971701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/000093 WO2005073770A1 (fr) 2004-01-30 2005-01-11 Dispositif optique

Country Status (5)

Country Link
US (1) US20080226249A1 (fr)
EP (1) EP1709470A1 (fr)
GB (1) GB0401998D0 (fr)
TW (1) TW200537149A (fr)
WO (1) WO2005073770A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7751680B2 (en) * 2007-09-24 2010-07-06 Verizon Patent And Licensing Inc. Environmentally stable component assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999684A (en) * 1996-12-10 1999-12-07 Bloom; Cary Apparatus and method for preserving optical characteristics of a fiber optic device
JP2001116950A (ja) * 1999-10-19 2001-04-27 Nippon Telegr & Teleph Corp <Ntt> 平面光波回路モジュール
WO2002048751A2 (fr) * 2000-12-14 2002-06-20 Sri International Source a fibres optiques a multiplexage en longueur d'onde dense (dwdm)
WO2002088813A1 (fr) * 2001-04-27 2002-11-07 Tyco Electronics Raychem Nv Fermeture hermetique a fibres optiques
WO2003062894A1 (fr) * 2002-01-18 2003-07-31 Tyco Electronics Raychem Nv Circuits optiques enfermes dans un boitier
WO2003098303A1 (fr) * 2002-05-20 2003-11-27 Tyco Electronics Raychem Nv Etancheite de fibres optiques
WO2003098306A1 (fr) * 2002-05-20 2003-11-27 Tyco Electronics Raychem Nv Enveloppe pour fibres optiques

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KR920010947B1 (ko) * 1989-05-24 1992-12-24 가부시끼가이샤 히다찌세이사꾸쇼 광결합장치와 그 제조방법, 발광장치와 그 조립방법 및 렌즈홀더
US5299273A (en) * 1992-11-12 1994-03-29 Teledyne Ryan Aeronautical Optical fiber to laminate adapter
US5412748A (en) * 1992-12-04 1995-05-02 Kabushiki Kaisha Toshiba Optical semiconductor module
US6220878B1 (en) * 1995-10-04 2001-04-24 Methode Electronics, Inc. Optoelectronic module with grounding means
US5971629A (en) * 1996-07-12 1999-10-26 Bloom; Cary Apparatus and method bonding optical fiber and/or device to external element using compliant material interface
US6151338A (en) * 1997-02-19 2000-11-21 Sdl, Inc. High power laser optical amplifier system
DE19850888A1 (de) * 1998-11-05 2000-05-11 Leica Geosystems Ag Einrichtung zur Halterung eines miniaturisierten Bauteils
KR100349598B1 (ko) * 2000-02-03 2002-08-23 삼성전자 주식회사 실리콘 광벤치를 이용한 스몰 폼 팩터 광송수신 집적 모듈
US6374014B1 (en) * 2000-04-17 2002-04-16 Ciena Corporation Fiber grating package
GB0010126D0 (en) * 2000-04-27 2000-06-14 British Aerospace Interfacing optical transmission structures
FI113566B (fi) * 2000-08-01 2004-05-14 Janesko Oy Refraktometri
US6850461B2 (en) * 2002-07-18 2005-02-01 Pgs Americas, Inc. Fiber-optic seismic array telemetry, system, and method
US6863453B2 (en) * 2003-01-28 2005-03-08 Emcore Corporation Method and apparatus for parallel optical transceiver module assembly
US20040240804A1 (en) * 2003-06-02 2004-12-02 Amaresh Mahapatra Liquid crystal polymer clad optical fiber and its use in hermetic packaging
JP2006229189A (ja) * 2005-01-19 2006-08-31 Seiko Epson Corp 光素子およびその製造方法、並びに、光モジュールおよびその製造方法
FR2883385B1 (fr) * 2005-03-16 2007-05-11 Inst Francais Du Petrole Dispositif de traversee etanche pour fibre optique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999684A (en) * 1996-12-10 1999-12-07 Bloom; Cary Apparatus and method for preserving optical characteristics of a fiber optic device
JP2001116950A (ja) * 1999-10-19 2001-04-27 Nippon Telegr & Teleph Corp <Ntt> 平面光波回路モジュール
WO2002048751A2 (fr) * 2000-12-14 2002-06-20 Sri International Source a fibres optiques a multiplexage en longueur d'onde dense (dwdm)
WO2002088813A1 (fr) * 2001-04-27 2002-11-07 Tyco Electronics Raychem Nv Fermeture hermetique a fibres optiques
WO2003062894A1 (fr) * 2002-01-18 2003-07-31 Tyco Electronics Raychem Nv Circuits optiques enfermes dans un boitier
WO2003098303A1 (fr) * 2002-05-20 2003-11-27 Tyco Electronics Raychem Nv Etancheite de fibres optiques
WO2003098306A1 (fr) * 2002-05-20 2003-11-27 Tyco Electronics Raychem Nv Enveloppe pour fibres optiques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03) *

Also Published As

Publication number Publication date
GB0401998D0 (en) 2004-03-03
EP1709470A1 (fr) 2006-10-11
US20080226249A1 (en) 2008-09-18
TW200537149A (en) 2005-11-16

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